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10x18x1 (3)
10x18x2 (3)
11.25x11.25x1 (3)
11.25x11.25x2 (3)
11.25x11.25x3.63 (3)
11.25x19.25x1 (3)
11.25x19.25x2 (3)
11.25x19.25x3.63 (3)
11.25x23.25x1 (3)
11.25x23.25x2 (3)
11.25x23.25x3.63 (3)
11.5x11.5x1 (3)
11.5x11.5x2 (3)
11.5x11.5x3.63 (3)
11.5x14.5x1 (3)
11.5x14.5x2 (3)
11.5x14.5x3.63 (3)
11.5x15.5x1 (3)
11.5x15.5x2 (3)
11.5x15.5x3.63 (3)
11.5x17.5x1 (3)
11.5x19.5x1 (3)
11.5x19.5x2 (3)
11.5x19.5x3.63 (3)
11.5x21.5x3.63 (3)
11.5x21x1 (3)
11.5x21x2 (3)
11.5x21x3.63 (3)
11.5x23.5x1 (3)
11.5x24.5x1 (3)
11.5x24.5x2 (3)
11.5x24.5x3.63 (3)
11.5x25.5x1 (3)
11.5x25.5x2 (3)
11.5x25.5x3.63 (3)
11.5x26.5x1 (3)
11.5x26.5x2 (3)
11.5x26.5x3.63 (3)
11.5x29.5x1 (3)
11.5x29.5x2 (3)
11.5x29.5x3.63 (3)
11.5x35.5x1 (3)
11.5x35.5x2 (3)
11.5x35.5x3.63 (3)
11.75x11.75x1 (3)
11.75x17.75x2 (3)
11.75x17.75x3.63 (3)
11.75x23.75x2 (3)
11.75x23.75x3.63 (3)
11.88x16.88x2 (3)
12.5x17.5x3.63 (3)
12.5x19.5x3.63 (3)
12.5x20.5x3.63 (3)
12.5x21x1 (3)
12.5x21x2 (3)
12.5x21x3.63 (3)
12.5x23.5x3.63 (3)
12.5x24.5x1 (3)
12.5x24.5x2 (3)
12.5x24.5x3.63 (3)
12.75x21x1 (3)
12.75x21x2 (3)
12.75x21x3.63 (3)
12x22x1 (3)
12x22x2 (3)
12x26.5x1 (3)
12x26.5x2 (3)
12x26.5x3.63 (3)
12x30.5x1 (3)
12x30.5x2 (3)
12x30.5x3.63 (3)
13.25x13.25x1 (3)
13.25x13.25x2 (3)
13.25x13.25x3.63 (3)
13.5x13.5x2 (3)
13.5x13.5x3.63 (3)
13.5x17.5x1 (3)
13.5x17.5x2 (3)
13.5x17.5x3.63 (3)
13.5x19.5x2 (3)
13.5x19.5x3.63 (3)
13.5x21.5x3.63 (3)
13.5x23.5x2 (3)
13.5x23.5x3.63 (3)
13.5x24.5x2 (3)
13.5x24.5x3.63 (3)
13.5x26.5x3.63 (3)
13.5x27.5x1 (3)
13.5x27.5x2 (3)
13.5x27.5x3.63 (3)
13.5x29.5x1 (3)
13.5x29.5x2 (3)
13.5x29.5x3.63 (3)
13.5x35.5x1 (3)
13.5x35.5x2 (3)
13.5x35.5x3.63 (3)
13.75x13.75x1 (3)
13.75x19.75x1 (3)
13.75x21.75x1 (3)
13.75x23.75x1 (3)

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Build your own custom AC or furnace filter in a few easy steps
Nominal Size
Actual Size
Merv Rating

Bulk Quantity Pricing

1-4 6 12 48 72 120
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12x12x1

11.75x11.75x1

MERV 11

$11.97 $10.77 $10.53 $10.17 $8.98 $8.38
Add to Cart

12x12x1

11.75x11.75x1

MERV 13

$17.77 $15.99 $15.64 $15.10 $13.33 $12.44
Add to Cart

12x12x1

11.75x11.75x1

MERV 8

$5.00 $4.50 $4.40 $4.25 $3.75 $3.50
Add to Cart